How was Mrs. Wright's relationship with Mr. Wright ?

The didn't have a good relationship at all. John Wright was seen as a good man, but he was also known to neglect his wife. He had no interest in thing that interested her, and he wouldn't even allow her to sing in the choir.

Mrs Wright had sung in the choir when she was young but marriage changed her. She became unhappy, and although we never meet her character, we come to understand that she had the most motive in the murder of her husband.